Natural Alternatives International Inc. is a California-based company that specializes in the formulation, manufacturing, and marketing of nutritional supplements across the United States, Europe, Asia, Australia, Mexico and Canada. The firm serves two segments, namely Private-Label Contract Manufacturing and Patent and Trademark licensing. Its services include contract manufacturing of nutritional supplements, customized product formulations, clinical study design and support, packaging in multiple formats and label design, scientific research, regulatory reviews, and international product registrations. Its bestselling product is beta-alanine under the CarnoSyn and SR CarnoSyn names. The company caters to customers that market nutritional supplements through direct sales marketing channels, direct to consumer e-commerce channels, and retail stores. Established in 1980, Natural Alternatives International, Inc. has its headquarters in Carlsbad, CA.